Helix M One X mono car subwoofer amplifier

close up of the side panel of a Helix M One X mono car subwoofer amplifier showing its rca inputs and preamp options

close up of the side panel of a Helix M One X mono amplifier showing its power and ground inputs, and speaker outputs

Helix M One X - Mono Amplifier

The Helix M One X is a compact mono amplifier that delivers powerful bass and clean sound quality. It's designed to fit seamlessly into any car audio system, offering big performance in a small package. Ideal for those looking to maximize sound without compromising space.

1030 watts x 1 @ 1-ohm

700 watts x 1 @ 2-ohm

400 watts x 1 @ 4-ohm

$700.00 $600.00

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Small, efficient and uncompromisingly stable - the M ONE X is a highly compact monoblock for subwoofer applications. Designed from latest Class D technology this tiny amp can easily control speakers with 1 Ohm impedance. Its current capability makes the M ONE X a perfect partner for 2 x 2 Ohms subwoofers, where both voice coils are connected in parallel. And for even more output power, two M ONE X amplifiers can be combined to one single powerhouse – thanks to the TwinPower Link.

In addition a comprehensive and stunningly practical feature set leaves nothing to be desired. Last but not least installation will be a no-brainer due to the minimal dimensions.

Smart highlevel input

The latest generation of OE car radios incorporates sophisticated possibilities of diagnosing the connected speakers. If a common amplifier will be hooked up failure messages and loss of specific features (e.g. fader function) quite often appear - but not with the M ONE X.
The new ADEP circuit (Advanced Diagnostics Error Protection) avoids all these problems without loading the speaker outputs of the OE radio during high volumes unnecessarily.

Start-Stop capability

The switched power supply of the HELIX M ONE X assures operation even if the battery’s voltage drops down to 6 Volts during engine crank.

Small footprint Class D amplifier with up to 1,180
Watts RMS output power @ 1 Ohm for easiest combination with all 2 x 2 Ohms subwoofers connected in parallel
Start-Stop capability down to 6V supply voltage
Smart highlevel input with ADEP circuit and Auto Turn-On function
Integrated, active crossover with lowpass, bass boost, subsonic and phase control
TwinPower Link for connecting two amplifiers in bridged mode
Bass remote control for volume adjustment
Low heat dissipation thanks to extraordinary efficiency